Other cultures have similar things, I'm familiar with the Papua New Guinean mumu https://www.tokpisin.info/mumu-papua-new-guinea/ https://www.tokpisin.info/mumu

Other cultures have similar things, I'm familiar with the Papua New Guinean mumu https://www.tokpisin.info/mumu-papua-new-guinea/ https://www.tokpisin.info/mumu-papua-new-guinea/ Note in that guide it says it may take up to 12 hours depending on the size of the pig. So to answer your question a lamb cooks a lot quicker because it's a lot smaller (and probably broken up into parts). And I guess PNG pigs are bigger then Hawaiian pigs too reading that yours take 8 hours.